Yarn spool for tube frames and the like



' May 27,1930. w. BIXBY' YARN SPOOL l FOR TUBE FILAMES AND THE LIKEOriginal Filed Nov. 4, 1927 NVEltlTOR & I/ffflll'll;

- ATTORNPl- Patented May 27, 1930 PATENT WALTER IBIXBY, OF BOSTON,MASSACHUSETTS, ASSIGNOR TO SHAWMUT ENGINEERING COMPANY, OF BOSTON,MASSACHUSETTS, A CORPORATION MASSACHUSETTS YARN SPOOL FOR TUBE FRAMESAND THE LIKE Application filed November 4, 1927, Serial No. 231,005.Renewed January 26, 1929;

This invention relates to yarn spools and is devised particularly tosuit certainrequirements of tube frames for yarn spools acting .headswhich shall, when in use, be firmly and securely fastened to the spoolbarrels but advmit readily of substitution or interchange of new headswhen desired for any reason. A

. further object of the invention is to provide a yarn spoolconstruction admitting of quick adaptation to different positions orrelations in a multiple spool frame so that a spool intended for asingle tube frame may be readily adapted for use in a multiple spoolframe to fit the middle bearing extension carried by such frames as wellas permit the reversal of the independent spools or sections of themultiple spool tube frame.

tion comprises a yarn spool whose barrel has hollow ends containinginternal anchoring discs or members securely fastened inside inconjunction with detachable end heads and clamping journal membershaving inward threaded or interlocking extensions for engaging theinterior anchoring members so as to permit detachment and substitutionof either end head or of either journal member to adapt the spool foruse in any pair of bearings in which it may be desired to insert thesame for service. Provision is also made to positively prevent rotationof the detachable head in relation to the barrel or the anchoringmember. These and other features of the invention will be particularlydescribed in the following specification and will be defined in theclaims hereto annexed.

In thedrawings I have illustrated a simple and convenient formof'construction and arrangement embodying the principles of this 7invention in which Figure 1 is a front elevation showing the sections ofa spool equipped with my invention, principally in verticalrespectively.

central section and mounted in a multiple tube frame.

Figure 2 comprises detailed side elevation and end views of one of thedetachable journal members employed.

Figure 3 shows in end and in side elevation the cooperating journalmember adapted to interlock with that shown in Figure 2.

Figure 4 shows the interlocking member for preventing rotativedisplacement,v in a side elevation, end elevation and plan view Figure 5shows in plan view and alsc edgewise the form of interlocking memberused for the interior or middle bearing journal to prevent rotativedisplacement.

In Figure 1 I have shown a multiple tube frame embracing thelongitudinal carrier bar Z) having end brackets 0 for the suspension ofthe tube frame from. its carrier chains and In its more importantfeatures, the invenalso for supporting the outsidejournals of thesectional spool. One or more 1ntermed1- ate spool bearing brackets cl ofany well-' known typecmayv be used to support the. interior chains ofthe spool. 1

The spool barrel a maybe made of a tubing of appropriate length or, asshown at a the spoolbarrel for the greater parts of-its length H may bemade of wood with projecting hollow supporting ferrules secured to eachend so that in either-case the spool has barrels with are screw threadedto form interlocking and 7 adjustable engagement with inserted journalscrew members 3 and 4, whose heads respectively engage the centrallyapertured inner portions of the end heads 2, eitherdirectly as shown atthe left of Figure 1 or through the medium ;of an. interposed annularjournal displacement of the key or. interlocking memmember lor 4 asshown at the middle part of Figure 1. In both cases the end heads 2 arepreferably provided with interior bosses, hubs or shoulders, 2, adaptedto fit snugly inside the hollow end of the spool barrel so that when thejournal screw 3 or 4 is inserted and interlocked with the threadedaperture of the anchoring members 1, the end heads will be clamped intofirm abutment against the end edges of the barrel. 7

here the journal at one or both ends is to be in the form of a reducedpintle 3*,- forming an outward extension of the threaded journal screw,the screw and the journal memb r maybe made in one piece. V7] here,however, the journal member is to fit the interior bearing extension ofthe tube frame, I prefer to make the ournal member separate from thethreadedxecrtension thereof; In such case, the journal member preferablycomprises an annular tubular or cup like bearing journal l having aperipheral flange enternally notched to receive a member for locking itagainst accidental rotation independent of the spool, as will presentlybe explained.

Often times it is desired that the abutting journal members of adjacentsections of the tube frame spool shall have an interlocking engagementto produce uniform and equal rotation of both sect-ions. When thisisdesired,-'one of the cup like members 4 maybe provided with tonguereceiving'notches e formed in itsouter end edge. The other annularbearing member 4 is provided with corresponding lugs or tongues ladapted to engage diametrically opposite slots i to form an interlockingengagement. These separable annular journal membersare both held inplace by similar journal screws l and are preferably locked with thespool body as will now be eXplained.

Each anchoring member 1; is provided at its periphery with a radial slotor notchat a corresponding distance from the center; The end headsQ havea similar radial notch as has also the peripheral flange of the journalmembers 4, a. When the end headand the annular bearing extension areassembled preparatory to drawing them tightly toan opera tive positionby means of the attaching journal screw l. the slots 2 oftheend headsand the notch 4: of the annular journal members should be alignedwiththe slot 1" of the anchoring member and before the parts aretelescoped together, there should be inserted between them a gib or key6 in the form of a cross having four substantially equal arms of whichthe axially extending arms telescope into the slots 1?. 2?, whilethetransver se form a spacing means that prevents the axial her when theparts are assembled in firm relationship, Since the anchoring member 1is securely fastened to the finterior ofthe barrel, it"i's-"evident thatno rotation of the head or of the journal extension with relation to theanchoring member of the barrel can take place. Yet this does not in theleast interfere with the assembling or disassembling of the device.

For anchoring the outer end heads about the one-piece journal member 3,I employi inwardly turned lug 7 projects into the slot l in theanchoring member 1. The lug 7 prevents endwise displacement that wouldpernnt disengagement of the inwardly projecting interlocking tongue, andthus the outer end headis securely locked against rotation with relationto the spool barrel.

Shouldit be desired for the purpose of reversing the pattern to reversethe ends of the twooutside spool sections, it will be obvious that thespool journals l, 4, with their corresponding locking keys, can, beinterchanged end for end withthe one-piece spool journal member and itslocking key by merely retracting the' screw journals and theirassociated locking keys and substituting one for the other.

One of the great advantages of this construction and arrangement residesin the fact that it is "unnecessary to carry a large numberof spools ofthe same pattern to meet the requirements of the various pattern demandsthat may be met with, since any, spool on which the yarn is wound -i-n'adefinitepattern can be substituted in any position in either directionin a multiple spool frame and can also be used in a single spool 'tubeframeby merely changing the journals. Furthermorelas the'end head, thebarrel and the journal of each spoolis each liable 'to'in nry or damagethat unfits it for further use, replacement'of any one of these partswhen-damaged can be readlly effected, while preserving the uninjuredparts for further nse, thereby secur ng great economy in ma1n-' tainingthe spools at full efiiciency.

The flanged or hollow construction of: the anchor ng membersis a featureof particular importance in the, manufacture of these spools because 1tfac litates a very effectlve -weld1ng of the anchoring member by allowing one of the welding. electrodes to be inserted against the inside ofthe flange, while parts thus accomplishingla perfect weld which is fasuperior to any spot welding operation that can be performed with asolid disc with both electrodes or terminals pressed against oppositesides of the same member, namely, the barrel.

.lVhat I claim is:

l. A yarn spool for tube frames embracing in combination with a tubularbarrel member, a centrally apertured anchoring member secured interiorlyand transversely thereof, a detachable end head adapted to abut againstend edge of said barrel member, a head attaching member passing axiallythrough end head and having its inner end releasably engaged with theapertured anchoring member and having an axial extension rejectingoutside said end head, thereby permitting removal and replacement ofjournals and heads on the same spool.

2. A yarn spool for tube frames embracing in combination with a barrelhaving hollow ends, centrally apertured and internally threadedtransverse disks secured to the interior wall of said barrel ends, endheads adapted to abut against said hollow ends, axially disposed journalscrews whose inner ends have adjustable threaded engagement with saiddisks to draw the end heads firmly but releasably against the end edgesof the barrel, the journal screws being provided with axial outwardlyprojecting extensions forming bearing journals to rotatably support thespool in its bearings. V

3. A sectional spool for a tube frame embracing longitudinal spoolsections having tubular ends in which are secured transverse anchoringmembers, end heads abutting against adjacent ends of the sections,axially disposed annular coupling members pro ecting outwardly from theend headsto form mutually interl cking spool supporting ournals, andaxially disposed means for detachably securing the coupling members andthe end heads to said anchoring members.

a. A sectional spool for a tube frame embracing longitudinal spoolsections having tubular ends in which are secured transverseanchoringmembers, end heads abutting against adjacent ends of the sections, axally disposed annular coupling members pro ecting outwardly from the endheads to form mutually interlocking spool supporting ournals, andaxially disposed means for detachably ecuring the coupling members andthe end heads to said anchoring members, and means for interlocking theend heads with the anchoring disks to prevent rotative displacement ofthe end heads in relation thereto.

5. In a yarn spool, the combination with a spool barrel having hollowends, in which are secured transverse centrally apertured anchoringdisks, end heads having annular shoulders fitting inside said hollewends, axial head attaching screws passing centrally through said headsand having releasable threaded engagement with the interior anchoringmembers, said attaching screws being provided with axial outwardlyprojecting journal forming extensionsfor'rotatably supporting the spool.V

6. The combination with a' spool: -barrel having hollow ends,transverseanchoring members secured therein, endheads abutting against the hollowends of the barrel, journal v 7 members releasably engaged with saidanchoring members for securing said heads'in such abutting position,interlocking members interposed-between the end heads and. thetransverse anchoring members and forming interlocking engagement betweeneach end head and its anchoring member to prevent rotative displacementof the end head v7.1 m end bearing constructionfor a yarn spoolembracing in combinationa tubular bar-rel member, atransverse perforatedanchoring member secured therein, a centrally perforated end headabutting against the end edge of the barrel, journalcarrying attachingmeans for releasably securing end head and the anchoring membertogether, an interposed locking member arranged to project through boththe end head and the anchoring member at a distancefrom the centresthereof, said locking member being provided with means to preventitsaccidental displacement from locking position.

8. In a yarn spool the combination with a 1 longitudinal barrel, anannularly flanged anchoring member located inside the hollow end portionof the barrel and welded thereto, a detachable end head having aninwardly offset shoulder adapted to fit inside the hollow end of thebarrel to position the head concentrically therewith, an axiallydisposed removable fastening member passing centrally through said headand having'threaded engagement with a coaxial portion of the anchoringmember, said fastening member being provided with an axial extensionoutside of the head to form a supporting journal for the head. V

9. A yarn spool embracing in its construc tion a longitudinalbarrel, atransverse anchoring member fixedly secured inside the end portion ofsaid barrel, an end head pro vided with an inwardly offset annular,posiv tioning shoulder adapted to engage the interior end edge of thebarrel, a removable fastening member passed through thecenter of thehead from the outside and having releasable fastening engagement withtheanchorv ing member, and means for positively inter.- locking the endhead against rotative displacement on the-barrel. V i

10.111 a yarn spool the combination of a longitudinal barrel, an annularanchoring member secured therein, said anchoring member being providedwith a peripheral flange for securing it to the barrel and with an innerflange provided with a screw thread, an end headformed with an annularposi tioning shoulder adapted to fit inside the end of the barrel, meansfor releasably anchoring the end head to the anchoring member, and meansfor interlocking the end head against rotation with relation .to thebarrel.

11. A yarn spool element comprising a tubular barrel having an interioranchoring member fixedly secured inside its end portion, said anchoringmember being formed with an offset peripheral flange-for securing 10 itto the barrel and with an interiorly dis,-

posed offset flange that is threaded to receive a head attaching screwand having also an ofl center notch adapted to receive means forinterlocking an attached head against ro- 15 cation. r

In witness whereof, I have subscribed the above specification.

' WALTER BIXBY;

